Polymer sefa yekunyungudika

Iyo melt sefa mudziyo wakakosha wekumhanyisa-kumhanya kuruka uye yakanaka-denier kuruka. Inoshandiswa kuenderera mberi kusefa kwepolymer inonyungudika kubvisa tsvina uye zvimedu zvisina kunyunguduka mukunyunguduka kuti uvandudze kuita kwekutenderera kwekunyungudika. Uye kuve nechokwadi chemhando yekutenderera.

Iyo melt sefa inoshandiswa kuenderera mberi kusefa kweyakakwira polymer kunyungudika kubvisa tsvina uye zvimedu zvisina kunyunguduka mukunyunguduka, kunatsiridza kuita kwekutenderera kwekunyungudika uye kuve nechokwadi chekutenderera kwemhando. Iyo melt sefa chishandiso chakakosha chepamusoro-kumhanya kuruka uye yakanaka-inopikisa kuruka. Inoita basa riri pachena mukuwedzera hupenyu hwezvinhu zvinotenderera, kuvandudza mashandisirwo emidziyo uye kuwedzera kubuda.

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Mukugadzira ma spunbonded nonwovens, kuitira kuti ive nechokwadi chekufambira mberi kwakanaka kwekutenderera uye kuderedza kuitika kwemafilaments akatyoka uye kudonha, seti mbiri dzemidziyo yekusefa inowanzoiswa. Sefa yekutanga (rough filter) yakaiswa pakati pescruder extruder uye metering pump, uye basa rayo guru nderokusefa kunze tsvina yakakura, kuitira kuti iwedzere nguva yekushandisa yechipiri sefa mudziyo uye kudzivirira metering pombi uye inotenderera pombi. , Kuwedzera kumanikidzwa kwemashure kweiyo extruder, nekudaro kunobatsira pakupedza uye plasticization yezvinhu panguva yekumanikidza. Yechipiri sefa (fine filter) inoiswa mumusangano wekutenderera, uye basa rayo guru nderekusefa tsvina yakanaka, makristaro mapoinzi, nezvimwewo, kudzivirira kuvharika kwespinneret, kuve nechokwadi chekufambira mberi kwekutenderera, uye kuvandudza mhando. ye fiber. Chimiro chesefa chidzitiro chinoenderana nechimiro uye saizi yespinneret, uye kazhinji iri multilayer rectangular sefa.